/**
 * Copyright 2010 Creative Works, Inc.
 * Creative Works licenses this file to you under the Apache License, version
 * 2.0 (the "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *    http://www.apache.org/licenses/LICENSE-2.0
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
 * implied.  See the License for the specific language governing
 * permissions and limitations under the License.
 */
package org.sendvox.freswitch.core;

import org.sendvox.freswitch.inbound.impl.InboundChannelHandler;

public class ThroughputMonitor extends Thread {

	/**
	 * Constructor
	 */
	public ThroughputMonitor() {
	}

	@Override
	public void run() {
		try {
			long oldCounter = InboundChannelHandler.getTransferredBytes();
			long startTime = System.currentTimeMillis();
			while (true) {
				Thread.sleep(3000);

				long endTime = System.currentTimeMillis();
				long newCounter = InboundChannelHandler.getTransferredBytes();
				System.err.format("%4.3f MiB/s%n", (newCounter - oldCounter)
						* 1000 / (endTime - startTime) / 1048576.0);
				oldCounter = newCounter;
				startTime = endTime;
			}
		} catch (InterruptedException e) {
			// Stop monitoring asked
			return;
		}
	}
}